1.1k citations · 3k across the 7 of their papers we have counts for
7 papers
Recovering quantum gates from few average gate fidelities
Ingo Roth, Richard Kueng, Shelby Kimmel +4
Characterising quantum processes is a key task in and constitutes a challenge for the development of quantum technologies, especially at the noisy intermediate scale of today's dev…
Quantum Tomography via Compressed Sensing: Error Bounds, Sample Complexity, and Efficient Estimators
Steven T. Flammia, David Gross, Yi-Kai Liu +1
Intuitively, if a density operator has small rank, then it should be easier to estimate from experimental data, since in this case only a few eigenvectors need to be learned. We pr…
Continuous-variable quantum compressed sensing
Matthias Ohliger, Vincent Nesme, David Gross +2
We significantly extend recently developed methods to faithfully reconstruct unknown quantum states that are approximately low-rank, using only a few measurement settings. Our new…
Direct Fidelity Estimation from Few Pauli Measurements
Steven T. Flammia, Yi-Kai Liu
We describe a simple method for certifying that an experimental device prepares a desired quantum state rho. Our method is applicable to any pure state rho, and it provides an esti…
Practical characterization of quantum devices without tomography
Marcus P. da Silva, Olivier Landon-Cardinal, David Poulin
Quantum tomography is the main method used to assess the quality of quantum information processing devices, but its complexity presents a major obstacle for the characterization of…
Efficient quantum state tomography
Marcus Cramer, Martin B. Plenio, Steven T. Flammia +6
Quantum state tomography, the ability to deduce the state of a quantum system from measured data, is the gold standard for verification and benchmarking of quantum devices. It has…
Quantum state tomography via compressed sensing
David Gross, Yi-Kai Liu, Steven T. Flammia +2
We establish methods for quantum state tomography based on compressed sensing. These methods are specialized for quantum states that are fairly pure, and they offer a significant p…